Improvement in machine for finishing staves



A. CUTTER. MACHINE FOR FINISHING STAVES.

No. 104,121. Patented June14, 1870.

he s1 0' U frn 0 r'f'nlo s To N, M a ssTAicIi'U sEL 'r 1f" Letters Patent No.104,121, datedunell, 1870; a-ntedatrd May 17,1870. H

v IMPROVEMENT IN MACHINE FOR STAVBS v The Schedule refund to these Letters Patent and maki ng pm or the same. i

To whom may concern.- I

Belt known that I, Amos. Curran, of Boston, in

the county of Sulfolk, in the State of Massachusetts,

that will chamter, croze, andcut off the staves to any desired length, and finish the same ready to be set up into place in the cask; aud- It'consists' in such construction of ,the machine as that-the stares are automatically and securely fed from an inclined table, and presented to revolving saws" and cutters that croze, chamfenand cutthe stave to the required length, gauge the depth of the crozing from the outside-of the stave, and have the means of adj ustment to work stares of different thick- 1 ness; and

-It also consists in the means of adjusting the crozing, chamfering, and cutting-off devices, as that any desired length of stave may be wrought. and finished in the machine. A A represents the frame that supports the operatiuaparts of the machine.

is an inclined feed-table, upon which the stavcs to be finished are placed on edge.

C 0 are two dislewheels, which are made fast upon, and are revolved by meansof a horizontal shaft, ll, in the direction to fced'thc stavcs singly to the saws and cutter which croze, chamfcr, and cut off the staves.

The disks 0 O are movable on shaft 11, and are held in place by set-screws c c.

. At suitable distances apart, and projecting from the periphery of the disk-wheels, are carriers 0, which, as

the disk-wheels revolve, come under and take hold of the edge of a single stave on table B, and carry the stave to the saws and cutter. which nish the stave complete. g

D is a sliding frame placed upon the inclined table B, and in the rearpf the stavcs to he acted upon, and is forced against the stavesa by means of a spriug,b, so that, as the disks revolve, a stave is taken. up by the carriers, and when it is raised a little more than its width, the spring b forces'the frame 1) and the staves a against the revolving disks, so that the next carrier will take another stave from the table to be presented to the saws and cutter, and so continue until the supply of staves on table B is exhausted, when the slide isforced back against the spring 1;, and another plemeut of stares placed on table P.

.the inside curvature of the gauge, which will hold the stave firmlyas it comes in. contact with the-croziug,'

chamferiug, andcut-oli devices.

These guide-gauges are firmly and rigidly attached to slidiugfiamcslfi E in such manner as not togive ;or yield to the outward pressure of the crozing, chamfering, and cut-off devices in finishing the stave, but.

' will hold the stave so that the said crozing, chamfering, and cut-oil devices will be gauged in their work by the outside'of the stave bearing against the guide gauges C C, which will always secure a. uniform finish of the stave from the outside thereofl which cannot be done when a flexible or sprinc nuide or holder is employed.

E E are sliding frames \vorking'betwceu tue longitudi'nal plates of the main frame on proper guide-ways, and are located at both ends of the flame, and support the revolving, crozlng, chamfcriug, and cutting olf devices.

Thcso frames E E, with the revolving cutters and saws, are made to slide in the main frame, and be adjusted to any length of stave, by means of the screw crank shafts c a going through appropriate nuts on the cross-platcs of the main frame, thence to the crossframcs E E", where they are so attached as that they can be revolved in one direction, and move the frames E toward the center of the frame, and, by reversing the revolution, the frames E and the croziug, chamfering,-aud cutting-oil devices will be drawn out from the center and allow a longer stave to be worked.

Frames E E, when adjusted to the proper places, which is known bythe graduated scales A on the top of the frame A, are held in such place by the rods 0' c' and the set-screws e" e".

1 The croziug, chamteriug, and cutting-oil" devices are formed together into a kind of cutter-head, and are composed of the crozing-sawsj, chamfering-cutters f, and cutting-off sawsf", and attached to and revolve with shafts y g, which shafts are journaled in boxes g and g", have collars on each side of boxes g to permit the box to slide with the shafts longitudinally while the shafts will slide freely in boxes g", and the boxes remain fixed, which admits ot' the adjustment of the frames 1), and the crozing, chamt'ering, and cutting-otf devices.

Shaft 41, that carries and revolves the adjustable disk-wheel O G, can be adjusted to different heights with relation to the guideauges G O, crozing, chamferiug, and cutoff devices, so that the thickness of the stave outside of the crozing'can be varied by turning the temper-screws h, which are underneath the sliding boxes h It, that carry shaft d. This is important, as it gives a ready means for working staves of different thickness by the same machine.

Motion is given to the revolving disk-wheels, and to the crozing, chamfering, and cutting-elf devices by pulleys and belts, but in such manner as to revolve the carrier disk-wheels in the direction to carry the unfinished stave a to the devices f, j", and f", for finishing, while thecrozing, chatnfering, and cutting-oil devices revolve in .the contrary direction.

The unfinished stave a is shown in fig. 1, on the table B, in broken lines, and a in the same figure represents a finished stave, having been crozed, chain.- fered, and cut off to the right length, and is leaving the carrier disk-whcels and guide-ganges.

I am aware that spring-guides or holders have been employed in connection with carrier disk-wheels'to hold the stave upon the disk-wheel, and against the, devices that finish the stave, but such flexible holder in practice does not answer a good purpose, as, for instance, when the revolving tools strike into a hard stave or a hard knot- -in a stave, the spring holder will be unable to resist the force exerted by the saws and cutters to' throw the stave outward, and, as a consequence, such stares will not be erozed or chamfercd properly, by reason that itis thicker 'fiUlll the bottom of the crozing to the outside of the stave than it I would have been had the guide-gauge been rigid and unyielding, as is fully shown in my improvement.

l am also aware that some means have been used for changing the devices for finishing staves, so that ditihrent lcngthsof stavcs may be finished in the same machine, but such means are confined to an adjustment at oneend of the stave only, while in my invention such devices are adjusted at bot-h ends of the stave, by which arrangement the force used for feeding the stavcs onthe inclined table to the carrier disk-wheels, to always be applied to the center of the Witnesses not lift it from the table, and a general derangement would follow, but with my invention these difiienlties are wholly and entirely avoided.

Having thus fully described my invention,

What I claim, and desire to secure by Letters Pateat, is-

1. The disk-wheels G C, havingthe carriers 0, in combination with the rigid unyielding guide-gauges O (l', the crozing, chamfering, and cutting-off devices f, f, and f", when they a-re'at-tachcd to and adjusted by the sliding frames E E, constructed to operate in:

the manner described.

2. The inclined feed table B, and feeding frame I), in combination with the disk-wheels C- C, having the carriers 0, and the rigid unyielding guide-gauges C C, in the manner and for the purpose described.

3. The adjustable unyielding shaft (1, and diskwheels 0 0, having the carriers 0, in combination with the rigid unyielding guide-gauges C and the crozing, chainfin'ing, and cutting-0t? devices f, f, and f", in the manner and for the purpose described,

4. The sliding frames EE, with their adjusting and holding devices, and carrying the crozing, chnmtering, and cntting-otftoolsj; f, and f, and guide-gauges (7' (3', in combination with the graduated scales A'A', for the purpose described.

' AMOS CUTTER.

l". A. XICIIOLS, E. W. llanrnxc. 

